/* 使用伪元素实现简单的图标 */
.icon-home::before {
  content: '🏠';
}

.icon-order::before {
  content: '📋';
}

.icon-message::before {
  content: '💬';
}

.icon-user::before {
  content: '👤';
}

/* 移除图标的默认样式 */
[class^="icon-"]::before {
  font-style: normal;
  font-size: inherit;
}